Vise grip lock



g- 18, 1931' c. M. ELLENBERGER. ,819,813

VISE GRIP LOCK Filed Dec. '5. 1928 ZSheets-Sheet 1 az T 4:; ,4

gwwmtov c. M. ELLENBERGER 1,819,813 I VISE GRIP LOCK I Filed Dec. 5, 192a r 2 sheets-sheet 2 Patented Aug. 18, 1931 pU NIT-ED STATES PATENT OF F I E CLARENCE M. ELLENBERGER, or :on'rnoIzr, MICHIGAN, AssIeNoIt, BY MESNE ASSIGN- MENTS,- 'ro oA'Kns-rnon-Uc'rs CORPORATION, A CORPORATION or. MICHIGAN VISE GRIP LOCK Application filedDecember 5, 1928. 'Serial No. 323,975.

portable automobile accessories, suchas spare tires and thelike. More particularly,

' the inventionhas to do with'the lock struc- 'tu rei whereby a member which is operable "by awrench, may be so positioned as. to

prevent 9 application of the wrench, and

locked in such position. I 1 Itis an object of the invention to provide an operating member which is movable from an accessible to an inaccessible posiposition, withmeans to lock it in inaccessible position. I

A further object of the invention is to provide an operating member presenting "a surface flush with the surface of the member in which it is mounted when in locked po-. sition, and adapted when unlocked to project therebeyond andafl'ord a non-circular .cross section for application of torsional r thusexerting an outward pressure on the cylinderhousin'g. be apparent as the following description proceeds, as read in connection with the ac- V 7 against the action-of the spring 25 The forces.

Other objects and features of novelty will companying drawings, in which:

Fig. 1 is a vertical cross sectional assem- -ly'bored part of the way therethrough as at 26, to receive'a lock bolt 27. One end of. the lock bolt is drilled as at 28 to receive .bly View of a structure constituting one embodiment of the present invention.

of construction of parts shown inFig. 1.

Referring more particularly to the drawings for a detailed description of one em,-

bodiment of the invention, there is illus- '-:2 d a vise grip lock, which is adapted to secure in place portable automobile accessories, such as spare tires, and the like. This dev ce comprises generally a main of the vise. The lower portion of the outer end of the member 10 is cut away as at 14:

I to receive the jaw 11, leaving an overhanging flange 15 which forms a hood or socket overlying the movable jaw 11. The mem ber 10 is provided with a central bore 16' of substantially uniform diameter except at the inner end thereof, which is of reduced snugly thereagainst.

s :the slot 20, the lugs 21 entering the slabbed off portion 22. The head projection 23 is The remaining figures illustrate details diameter forming a shoulder 17 which serves T to'retain the bolt 12. The bolt 12' has a head 18, thebo'lt'and head both being of such diameter thatv the bolt may be inserted through the bore 16 and passthroughthe annular shoulder '17 so that the head 18' fits The bore 16 also" receives'a cylinder hous- --is correspondingly s'labbed off as at 22, to

mate with the cylinder housing, thus forma head projection 23 adapted to enter provided with a central bore 2 1 which receives a coil compression spring25. One end of-this spring bears against the bottom *of the bore 24, and the other end bears against the bottom of the rectangular slot Locking me'ans'are provided for retaining the cylinder housing 19 in the bore 16 cylinder housing is accordingly transverseone end of a coil compressionspring' 29, the other end of which seats in the bottom of the bore 26, and normally tends to thrust the lock bolt 27 out of the bore 26. The main bore 16 is provided with an annular groove 30, into which the outer end-of the lockbolt 27 extends.

' The cylinder housing is centrally bored to receive the lock cylinder 31. The inner end of the lock cylinder 31 carries 'a lug 32, ec-

ing 19, the inner end of. which is slotted i y centrically mounted thereon and adapted'to engage the lock bolt 27 by entering arectangular slot 33 formed in the side ofthe bolt 27. In the inner surface of the lock cylinder, starting from a point opposite the lug 32, an arcuate groove is out which extends degrees around the circumference of the cylin der. This groove 3l'is adapted to receive have relative movement with respect to the cylinder housing, which movement is limited to 90 degrees.

The outer end of the cylinder housing is slabbed off as at 36, leaving shoulder 37. As there are siX slabbed ofl' portions, the outer .end of the cylinder housing forms a hexagonal nut, The outer end of the bore 16 is recessed as at 38 and snugly receives a collar 39 having a hexagonal central aperaperture of the collar 39 fits snugly against the sides of the hexagonal portion of the cylinder housing. This arrangement leaves no aperture through which instruments may be inserted to efiectv the unauthorized opening of the lock.

Wh l .one embodimen .ef the'inveut has been shown and described in comparative detail, the scope of the invention is not limited ture 40 which fits the hexagonal outer end to any of these details, but includes such emof the cylinder housing. The collar 89 is retained in the recess 38 by means of the snap ring 41, which will permit rotation but not longitudinal movement of the collar 39 with respect to the main member 10. A similar snap ring .42 serves to retain the lock cylinder inside the cylinder housing. The lock cylinder 31 is provided with tumblers, etc so that it may be operated only by the insertion of a key.

In operation, when the parts are in the locked position and it is desired to remove the tire or other accessory, the key is illserted in the lock cylinder 31 which is revolved 9 0 degrees,,rduring which the pin 35 rides in the slot 34, At the. same time the rounded lower portion of the lng 32 bears on the bottom of the slot 33 in the lock bolt 27 and withdraws it from the annular groove 30 against the action of the spring 29. The bolt 27 is thus retracted into the bore 26, and hence no longer retains the cylinder housing st e a t n of he sp ng -5, which o s, it ou ward y until the Shoulder 37 V abut aga n t th nn r e d a e l a Th pe mit h h agonal u rj d of he cylinder housing to extend outwardly a sufficient distance to permit it to be readily eneegecl by a wr nch r ing f he ylm h usinghy m a of a W nch new urn th b 12, y reas n o th mating o the l g 19 w th th slabhed ofi proje tion 23 of the b l he d.- Th movabl j w 11 be ng i threaded engagement with the bolt 12 will thu h mev d utwardly, nd-t vise g p Pr vided y thefiaeg 1-0 n w l t r h el ase Th ntire o k a well as the eeees ry sec r d h r by an n w here moved. To r to th p rt th f ng 10 and ar p aced on ei her part of t tire, and by application of the wreneh, the bolt 12 can be a used to caus th jaws 1 and 11 to exe a ise-like grip n t a c ssory to be s cured- The; Wr nch is now remov an t e e te d d en f he ylind r hou i g i pu hed ba k against the a tion of the pring 25, ntil the outer end of the lock bolt 27 rides into the annular groove 30, The spring 29 will a on e for e the l k elt 7 int th gro ve, and thu eta n th cylinder hou ing in p bod'iments of the broad idea'as come within the scope of the appended claim.

Having thus described the invention, what I cl im i In a locking device of the class described, the combination of aiframehaving a bore, a

securing member rotatable in said here, an

operating member rotatable in said here an having its outer end adapted to receive ,atool for rotating said operating member, coupling ends on said members adapted to transmit rotation of said operating memberto said securing member but to permit axial movement of said operating member relative to said securing member, said coupling ends having communicating pockets, a compression spring confined Within said pockets tending to hold said operating member with its tool receiving end outside of said frame for the'application of a tool thereto, and means for locking said operating member against the pressure of saidspring to retain it toole e ving e d neeel ithin said frame. I

In testimo y whe eof I aflix my s gna-- tar CLARENCE M. ELLENBERGER.

. ticn. It should be noted that the parts are 

